Tromsdalen Weather in September
Average highs run from 12°C on September 1 to 6°C on September 30, and lows from 6°C to 2°C. Normal precipitation for the month is 132 mm over about 18 wet days.
September day by day
The normal high and low for each date, in °C.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
September at a glance
- Average high
- 9°C
- Average low
- 4°C
- Precipitation
- 132 mm
- Reanalysis high
- 19°CSep 2, 2005
- Reanalysis low
- -4°CSep 29, 2003
- Daylight
- 15 h 23 min to 11 h 16 min
- Cloud cover
- 79%
- Humidity
- 90%
- Dew point
- 5°C
- Wind
- 8.3 km/h
Every day of the month
A wet day has at least 1 mm of precipitation in the reanalysis.
| Date | Normal high | Normal low | Reanalysis high | Reanalysis low | Chance wet |
|---|---|---|---|---|---|
| Sep 1 | 12°C | 6°C | 19°C 2019 | 0°C 2003 | 65% |
| Sep 2 | 12°C | 6°C | 19°C 2005 | -1°C 2007 | 64% |
| Sep 3 | 12°C | 6°C | 17°C 1997 | 2°C 2016 | 64% |
| Sep 4 | 12°C | 6°C | 17°C 2006 | -1°C 1992 | 64% |
| Sep 5 | 11°C | 6°C | 17°C 2011 | -1°C 1992 | 66% |
| Sep 6 | 11°C | 6°C | 18°C 2013 | 0°C 1992 | 65% |
| Sep 7 | 11°C | 5°C | 19°C 1999 | 0°C 2000 | 64% |
| Sep 8 | 11°C | 5°C | 15°C 2011 | 1°C 2005 | 63% |
| Sep 9 | 11°C | 5°C | 17°C 2018 | 2°C 1993 | 63% |
| Sep 10 | 11°C | 5°C | 17°C 2013 | 0°C 2012 | 62% |
| Sep 11 | 10°C | 5°C | 17°C 2019 | 0°C 1991 | 62% |
| Sep 12 | 10°C | 5°C | 17°C 1992 | 0°C 1996 | 61% |
| Sep 13 | 10°C | 5°C | 18°C 1999 | -1°C 1996 | 60% |
| Sep 14 | 10°C | 4°C | 16°C 1999 | -1°C 1993 | 60% |
| Sep 15 | 10°C | 4°C | 14°C 2015 | 0°C 2005 | 60% |
| Sep 16 | 9°C | 4°C | 15°C 2006 | 0°C 2005 | 60% |
| Sep 17 | 9°C | 4°C | 15°C 2001 | 0°C 1993 | 62% |
| Sep 18 | 9°C | 4°C | 15°C 2013 | -1°C 1993 | 64% |
| Sep 19 | 9°C | 3°C | 15°C 2013 | 0°C 2003 | 65% |
| Sep 20 | 8°C | 3°C | 15°C 2001 | -1°C 2017 | 64% |
| Sep 21 | 8°C | 3°C | 14°C 2000 | -1°C 2017 | 64% |
| Sep 22 | 8°C | 3°C | 14°C 2016 | -1°C 2014 | 64% |
| Sep 23 | 8°C | 3°C | 14°C 2016 | -2°C 2014 | 64% |
| Sep 24 | 7°C | 3°C | 14°C 2017 | -2°C 2014 | 62% |
| Sep 25 | 7°C | 3°C | 14°C 2017 | -2°C 1995 | 61% |
| Sep 26 | 7°C | 2°C | 14°C 2016 | -1°C 2006 | 61% |
| Sep 27 | 7°C | 2°C | 14°C 2017 | -2°C 2006 | 60% |
| Sep 28 | 7°C | 2°C | 12°C 2017 | -3°C 1998 | 59% |
| Sep 29 | 6°C | 2°C | 13°C 2017 | -4°C 2003 | 60% |
| Sep 30 | 6°C | 2°C | 14°C 2017 | -4°C 2003 | 59% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+2).
- September 1
- sunrise 5:01 AM, sunset 8:24 PM
- September 30
- sunrise 6:55 AM, sunset 6:11 PM
Other months
Sources
Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.